Use fullscreen, click the flag, and use the "Canvas Size" and "Colour" sliders to change those things. WARNING: Changing the canvas size or clicking the stop button will erase your drawing.
There are currently 25 basic colours for you to use. Suggest more in the comments, and I will add more when I have enough. Sorry, I tried to make an uploading/downloading system, but it failed, so no :( Advertising is allowed, as long as it is a link to something you made with this. (also no spamming)
